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8201179: Regression due loading java.nio.charset.StandardCharsets during bootstrap

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Reviewed-by: sherman, martin
This commit is contained in:
Claes Redestad 2018-04-10 16:16:34 +02:00
parent 370977cf4f
commit c40af49970
7 changed files with 33 additions and 16 deletions
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2
src/java.base/share/classes/java/nio/charset/Charset.java
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@ -609,7 +609,7 @@ public abstract class Charset
if (cs != null)
defaultCharset = cs;
else
defaultCharset = StandardCharsets.UTF_8;
defaultCharset = sun.nio.cs.UTF_8.INSTANCE;
}
}
return defaultCharset;

12
src/java.base/share/classes/java/nio/charset/StandardCharsets.java
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@ -34,22 +34,28 @@ package java.nio.charset;
*/
public final class StandardCharsets {
// To avoid accidental eager initialization of often unused Charsets
// from happening while the VM is booting up, which may delay
// initialization of VM components, we should generally avoid depending
// on this class from elsewhere in java.base.
private StandardCharsets() {
throw new AssertionError("No java.nio.charset.StandardCharsets instances for you!");
}
/**
* Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the
* Unicode character set
*/
public static final Charset US_ASCII = new sun.nio.cs.US_ASCII();
public static final Charset US_ASCII = sun.nio.cs.US_ASCII.INSTANCE;
/**
* ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1
*/
public static final Charset ISO_8859_1 = new sun.nio.cs.ISO_8859_1();
public static final Charset ISO_8859_1 = sun.nio.cs.ISO_8859_1.INSTANCE;
/**
* Eight-bit UCS Transformation Format
*/
public static final Charset UTF_8 = new sun.nio.cs.UTF_8();
public static final Charset UTF_8 = sun.nio.cs.UTF_8.INSTANCE;
/**
* Sixteen-bit UCS Transformation Format, big-endian byte order
*/